Measurement of Ionizing Radiation Level in an High Altitude Town of Imesi-Ue, Osun State, Southwestern, Nigeria

摘要

The present research attempts to measure background ionizing radiation in an high altitude town of Imesi-Ile, Osun State, Southwestern, Nigeria The measurements were carried out in 20 locations within the town using portable Digilert 50 Nuclear Radiation monitor. The absorbed dose rates obtained ranges from 26.6-48.6 nGy h~1 with a mean value 37.19 nGy h~1. The estimated annual effective dose is 0.46 mSv. This value is less than annual dose unit of 1 mSv recommended by UNSCEA for normal environment.